Empowering Islamists

The East London Mosque is among Britain's most extreme Islamic institutions. Built with financial aid from Saudi Arabia, the sprawling facility is home to the London Muslim Center where incendiary preachers are regularly welcomed. On Monday, the East London Mosque hosted a very different kind of visitor—the U.S. ambassador to the United Kingdom, Louis Susman. Urged by President Barack Obama to engage with British Muslims, Mr. Susman spoke of his "great admiration" for the mosque and his enthusiasm for meeting its staff....